A recent combined sewer diversion at the Aylesbury Estate regeneration project in South London by Elephant and Castle.

• 100m of timber heading was driven at a depth of 4m underneath carriageway
• 600mm GRP (glass reinforced plastic) pipework was installed
• 8no shafts were excavated for 1800ID and 1500ID manholes
• An additional 60m of open cut was carried out for the surface water drainage